| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 2 | |
| #2 | Australia | 1 | |
| #3 | Brazil | 1 | |
| #4 | Canada | 1 | |
| #5 | China | 1 | |
| #6 | EAPO (Eurasian Patent Organization) | 1 | |
| #7 | Egypt | 1 | |
| #8 | EPO (European Patent Office) | 1 | |
| #9 | Hong Kong | 1 | |
| #10 | Republic of Korea | 1 | |
| #11 | Mexico | 1 | |
| #12 | Serbia | 1 | |
| #13 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Unspecified technologies | |
| #3 | Punching metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Karoliussen Hilberg | 10 |
| #2 | Karoliussen Hilberg Inge | 2 |
| #3 | Hilberg Karoliussen | 1 |
| #4 | Inge Karoliussen Hilberg | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN1956809A | Method and apparatus for cold joining flanges and couplings elements to pipes |